Situation
Mrs. Reynolds is the longstanding housekeeper of Pemberley House in Derbyshire. Separately, she tells us that she has worked for the Darcy family for at least 23 years, which could have been exclusively at Pemberley or at the London residence as well.
Connections
We are not told explicitly how close Reynolds is to the family. She sings the praises of Fitzwilliam Darcy before going on to say that “I have never known a cross word from him in my life, and I have known him ever since he was four years old." She says of Georgiana that she is “the handsomest young lady that ever was seen; and so accomplished!”
George Wickham insists that Reynolds was always fond of him. However, as she says of him “He is now gone into the army...but I am afraid he has turned out very wild,” it would seem she either never did indeed care for him or later saw the error of her ways.
Appearance
She leads the Gardiners and Elizabeth Bennet on a tour and is described by Lizzy’s point-of-view as “a respectable-looking elderly woman, much less fine, and more civil, than she had any notion of finding her” and “an intelligent servant.”